Inking mechanism for printing-presses.



J. PRINCE.

INKING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED APR.13, 1914.

Patented Mar. 2, 1915.

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JAMES PRINCE, OF LOS ANGELES. CALIFORNIA.

INKING MECHANISM FOR PRIN TIN G-PRESSES.

Application filed April 13, 1914.

T all whom it may concern Be it known that I, JAMES PRINCE, a citizen of the United States, residing at the city of Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Inking Mechanism for Printing-Presses, of which the following is a specification.

My invention relates to that class of presses known to the trade as Gordon presses.

lleretofore such presses have been provided with what is known as disk distribution for the ink over which the form rollers were passed to obtain a supply of ink for the form and great difficulty has been experienced in inking the form thoroughly and evenly owing to the fact that the form rollers do not have proper contact with the d sk, which renders this class of presses useless [or printing the best class of work.

It i.--; the object of my invention to provide inking means for presses of this character which will obviate the above named objections and which will enable this class of press to be used for the best class of work thus doing away with the expense of having special machinery for that purpose.

A, further object is to provide a device of this character which will be simple in construction and operation, easily and quickly attached to any standard form of press without materially changing the same.

Iv accomplish these objects by the mechanism described herein and illustrated in the accompanying drawings forming a part hereof in which:

Figure 1 is a. side elevation of so much of a machine as will illustrate my invention.

Fig. 2 is a diagrammatic rear view of the operating mechanism of Fig. 1. Fig. 3 is an enlarged side elevation of my attachment removed from the machine. Fig. 4 is a top plan of Fig. 3, with parts omitted. Figs. 5 and (3 are details of the ink fountain and its operative parts. Fig. 7 is a sectional detail of the connection between the telescopic shafts. Fig. 8 is a sectional detail of the ink fountain with one of the sides removed.

My device comprises two side plates 10 and 11 at the lower portions of which are provided lugs 12 which extend inwardly and provide means for attachment to the frame 13 of the machine. An inking cylinder 11 is rigidly mounted upon shaft 15. the ends Specification of Letters Patent.

Serial No. 831,391.

of which are rotatably mounted in bearings in side plates 10 and 11 and project a short distance above the top of said side plates.

At the rear of cylinder 14 and in contact with the periphery thereof are mounted composition rollers 16 and 17. Rollers 16 and 17 have their ends journaled in slots 18 and 19 in side plates 10 and 11. A vibrating distributing roller 20 of ordinary construction has its ends 21 mounted in slot 19 at the rear of roller 17 and has its periphery in contact with the peripheries of rollers 16 and 17. Set screws or other suitable means are provided for adjusting the ink and vibrating rollers. An ink fountain 22 of ordinary construction is bolted or otherwise secured to plates 10 and 11 at the lower ends of the rear edges thereof and is provided with the usual feed roll 93 rigidly mounted on shaft 24 the ends of which are revolubly mounted in bearings in the sides of the ink fountain Shaft 24 has mounted on one of its ends, near the inner wall of one side of the ink fountain, a ratchet wheel 25 which is operated by a pawl 26 mounted on operating lever 27. A ductor roller 28 is revolubly mounted in hearings on the free end of rocking levers 30 and 31 and normally rests upon the upper side of feed roll 23. The other ends of levers 30 and 31 are rigidly mounted upon a rock shaft 32 which shaft is j'ournaled in plates 10 and 11. An operating arm 33 has one end rigidly secured to the under side of rocking lever 31 Patented Mar. 2, 1915. v

and extends rearwardly and then down-'- wardly a short distance.

Secured upcn the outer end of the operating shaft 31 of the machine is a miter gear 35 which meshes with a miter pinion 36 secured upon the lower end of a hollow shaft 31'. The lower end of shaft 37 is revolubly mounted in a swinging bearing 38. Bearing 38 is connected by arm 39 to a tubular collar 40 loosely mounted upon shaft 34 near the inner side of gear 35. An operating shaft 11 is slidably mounted within hollow shaft 37 and extends upwardly andhas mounted upon the upper end thereof a. bevel gear 42 which meshes with a similar gear 43 secured upon the outer' end of a horizontal stub shaft ll. Shaft 41 is supported at its upper end in a bearing 45 which bearing is connected by arm 16 to a tubular collar 47 loosely mounted upon shaft 4-1 near the inner side of gear 43 Shaft -l-l is mounted at or near its inner end in a bearing 48 secured to the top of the outer side of side plate 10.

level gears 49 and 50 connect the inner end of shaft i4 and the upper end of a vertical stub shaft 51. Shaft 51 is revolubly mounted in a bearing 52 secured upon the inner side of plate 10 and has secured upon the lower end thereof a bevel gear 53 which meshes with a similar gear 5 L secured upon the end of shaft 15 of the ink roller It and rotates the same. A key is secured with in hollow shaft 87 at the upper end thereof and registers with a spline 56 cut in operating shaft $1. This construction is best shown in Figs. 2 and 7 and permits shaft 41 to slide within shaft 31 but provides that said shafts shall \rotate in unison.

In operation as the machine is operated in the usual. manner gear 35 will be rotated with shaft and will by means of the gearing connected thereto cause inking roller M to be rotated as long as the machine is being run. As the form roller frames 57 are oscillated the bar 58 connecting ends thereof will on its upward travel engage the end of feed roller operating lever 27 and the end of operating arm :13 of the ductor roller and carry the same upwardly. This movement will cause the ductor roller to be brought up into contact with vibrating roller 29 and as said vibrating roller is being rotated contmuously by inking cylinder 1% and the composition rollers this contact will cause the duetor roll to be rotated and will spread ink therefrom upon the vilo'rating roller from which it is transferred to the composition rollers and then on to the inking cylinder. As operating le\ or 27 is raised said lever raises pawl 26 to a position where it en-- gages a tooth in ratchet wheel 25 and upon the downward movement of the bar 58 a lug 59 secured to the lower edge of the inner side thereof will engage the lower end of rod 60 the upper end of which is secured to the outer end of lever 27, and draw said lever downwardly to its normal position. This movement rotates feed roller 23 and ductor roller 28 resting upon the upper side thereof will also be rotated and will be coated with ink. The doctor roller returns to its normal position by gravity as soon as bar 58 releases the end of operating arm 33.

By this construction I have provided a cheap, simple and eliieient means for inking the form of printing presses which will render the press more efficient.

Having described my invention what I claim is:

1. In a platen printing press mechanism comprising a frame secured to the frame of the press; an inking cylinder revolubly mounted in said frame; composition rollers adjustably mounted in said frame having their peripheries adapted to be brought into contact with the periphery of the inking cylinder; a vibrating distributing roller contacting with the peripheries of said composition rollers and connecting the same rotatably mounted in said frame; an ink fountain; a feed roll revolubly mounted in said fountain; a ductor roller revolubly mounted in said frame to oscillate between said feed roll and the vibrating roller; means to operate said feed and ductor roller; and means to rotate said inking cylinder comprising an oscillating telescopic shaft operatively coir necting said inking cylinder and the driving shaft of the press.

The combination with a Gordon press of an inking device comprising a frame bolted to the side arms of the machine; an ink ing cylinder for the form rollers revolubly mounted in said frame; distrilniting rollers mounted in said frame in contact with said inking roller and spaced apart; a vibrating roller contacting with said distrilniting rollers and connecting the same mounted in said frame to rotate therein; an ink fountain sccurcd to said frame; a feed roller revolubly mounted in said ink fountain; a transfer roller mounted in said framcto oscillate between said feed and vibrating rollers; a telescopic connection between the inking cvlinder and the driving shaft of the press for revolving the cylinder; means for intermittently oscillating said transfer roller; and means for intermittently revolving the feed roller.

tlfAn inking device for a press of the Gordon type comprising a frame; an inking cylinder mounted in said frame to rotate therein; distriluiting roil rs adjustably and revolubly mounted in said frame in contact with said inking cylinder; a vibrating roller contacting with said distributing rollers adjustably and rcvolubly mounted in said frame; an ink fountain; a feed roller revolubly mounted in said ink fountain; a transfer roller mounted in said frame to oscillate between the feed roller and the vibrating roller; an oscillating telescopic connection from said inking cylinder to the driving shaft of the press; means to cause said trans fer roller to contact first with the feed roller and then with the vibrating roller; and means to intermittently rotate said feed roller.

In witness that I claim the foregoing I have hereunto subscribed my name this 6th day of April, 1914.

JAMES PRINCE. Witnesses:

FRANK IVATERrIELD, LUoLA A. SWAN. 

